This axle supplier was used on Silver Streak right up until the 1980's. I emailed them once on mine, but had no response (was looking for shock absorber specifications). The PO had already converted the brakes to DEXTER units.
1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 15-cpm solo, 25-cpm towing